Basis of Classification | Term 2 Unit 5 | 7th Science - Student Activities | 7th Science : Term 2 Unit 5 : Basis of Classification

Chapter: 7th Science : Term 2 Unit 5 : Basis of Classification

Student Activities

7th Science : Term 2 Unit 5 : Basis of Classification : Student Activities with Questions Answers, Solution

ACTIVITY 1

Aim : To sort out a box of given buttons and classify them into different types. Materials Required : A box full of different types of buttons.

Procedure:

1. Take a box of given buttons.

2. Work in small groups of three or four and classify the buttons based on the following classification criteria.

i. Shape

ii. Buttons with four holes

iii. Buttons with two holes.

iv. Colour

3. Identify other features that can be used to sort out buttons into different groups.

ACTIVITY 2

Fill up the blanks with the suitable organisms

1. Vertebrates man, dog and tiger.

2. Invertebrates earthworm, crab and snail.

3. Name the vertebrates with wings parrot, hen.

4. Name the invertebrates with wings butterfly, housefly.

5. Name the invertebrates with segmented legs crab, lobster.

6. Name the invertebrates with Jointed legs scorpion, spider.

7. Name the warm blooded vertebrates man, bear.

8. Name the cold blooded vertebrates fish, crocodile.

9. Name the vertebrates with lungs respiration goat, dog.

10. Name the animal with beak eagle.

ACTIVITY 3

Given table shows the name of the phylum and its characteristic features. Write name of the animals belonging to the respective phylum.

Phylum : Characters : Example

Porifera : Pore bearers : Spongilla

Coelenterata : Gastro vascular cavity : Hydra

Platyhelminthes : Flame cells : Tapeworm

Aschelminthes : Thread like worms : Ascaris lumbricoides

Annelida : Body is segmented : Earthworm

Arthropoda : Have jointed legs : Crab

Mollusca : Soft bodied with shells : Snail

Echinodermata : Spines on the skin : Starfish

Chordata : Have backbone : Man

ACTIVITY 4

Field trip to sanctuaries / zoo should be arranged. Students are guided to observe the animals and explain about the feature of animals how they are protected and maintained in the zoo. Note the displayed names of the plants and animals. Discuss your observation in the class

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7th Science : Term 2 Unit 5 : Basis of Classification : Student Activities | Basis of Classification | Term 2 Unit 5 | 7th Science